Wolff Gunsprings Ruger Mini-14 181+ Series XP Recoil Spring

Wolff's extra power (XP) recoil spring for the Ruger Mini-14 with a serial number prefix of 181 or higher, plus the Mini-30 and Ranch Rifle. Check the first three digits of your serial number: 180 series rifles take a different spring.

Wolff rates its extra power springs at about 15 percent over stock, to help the action close positively. This is a recoil spring only; the Mini-14 hammer spring is a separate part.